Objectives:The aim of the present study was to evaluate the adhesion of the root canal sealer Sealer 26 (Dentsply, Brazil) using human teeth filled by lateral condensation and Tagger's technique through the methodology of the push-out. Methods:20 human canines were transversally sectioned at the cementoenamel junction and embedded in autocure acrylic resin in brass rings with 8 mm of height. The cervical and medium thirds of the root canal of these teeth were enlarged with gates glidden # 4, with a round bur # 8 and then with a conical tungsten bur coupled to a low speed hand piece and a delineator. The apical third was manually shaped with K file (Maillefer). Each root canal had been irrigated with Sodium hypochlorite 1% during the instrumentation and then was treated with 3ml of EDTA 17% for 5 minutes. The sample was divided in 2 groups composed by 10 teeth each. In the group I, the teeth were filled by the lateral condensation technique and in the group II by Tagger's technique, using gutta condenser (Maillefer). The samples were stored in a kiln at 37º C for 48 hours and then they had sectioned your non-embedded portion and discarded. A push-out test was performed with an Instron Universal Machine (model 4444). Results:The statical analysis didn't evidence significant statistic difference among the used techniques. Conclusion:It was concluded that the different filling techniques didn't influence in the adhesiveness of the filling material to the walls of the root canals.

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